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发明名称
Improvements in and relating to chess instruction apparatus and the like
摘要
申请公布号
GB591120(A)
申请公布日期
1947.08.07
申请号
GB19450008469
申请日期
1945.04.05
申请人
MORICE JAMES DREW
发明人
分类号
A63F3/00;A63F3/02;G09B19/22
主分类号
A63F3/00
代理机构
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